US2070497A - Process of obtaining manganese values from ores containing them - Google Patents
Process of obtaining manganese values from ores containing them Download PDFInfo
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- US2070497A US2070497A US394677A US39467729A US2070497A US 2070497 A US2070497 A US 2070497A US 394677 A US394677 A US 394677A US 39467729 A US39467729 A US 39467729A US 2070497 A US2070497 A US 2070497A
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- manganese
- sulphate
- ammonium
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- 238000000034 method Methods 0.000 title description 22
- 239000011572 manganese Substances 0.000 title description 21
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title description 20
- 229910052748 manganese Inorganic materials 0.000 title description 20
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 29
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 28
- 239000001166 ammonium sulphate Substances 0.000 description 28
- 235000011130 ammonium sulphate Nutrition 0.000 description 28
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 25
- 239000007789 gas Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 description 13
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 13
- 229910021529 ammonia Inorganic materials 0.000 description 12
- 239000001569 carbon dioxide Substances 0.000 description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 11
- 238000009835 boiling Methods 0.000 description 11
- 229910052749 magnesium Inorganic materials 0.000 description 11
- 150000002697 manganese compounds Chemical class 0.000 description 11
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 10
- 239000011702 manganese sulphate Substances 0.000 description 10
- 235000007079 manganese sulphate Nutrition 0.000 description 10
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 10
- 230000001376 precipitating effect Effects 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 9
- 238000001556 precipitation Methods 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000001095 magnesium carbonate Substances 0.000 description 8
- 238000002407 reforming Methods 0.000 description 8
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 7
- 239000001099 ammonium carbonate Substances 0.000 description 7
- 235000012501 ammonium carbonate Nutrition 0.000 description 7
- 235000011114 ammonium hydroxide Nutrition 0.000 description 7
- 239000000908 ammonium hydroxide Substances 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 6
- 150000002736 metal compounds Chemical class 0.000 description 6
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 5
- 235000014380 magnesium carbonate Nutrition 0.000 description 5
- IPJKJLXEVHOKSE-UHFFFAOYSA-L manganese dihydroxide Chemical compound [OH-].[OH-].[Mn+2] IPJKJLXEVHOKSE-UHFFFAOYSA-L 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 235000010216 calcium carbonate Nutrition 0.000 description 4
- 150000002681 magnesium compounds Chemical class 0.000 description 4
- 229910021653 sulphate ion Inorganic materials 0.000 description 4
- 150000003868 ammonium compounds Chemical class 0.000 description 3
- 239000001175 calcium sulphate Substances 0.000 description 3
- 235000011132 calcium sulphate Nutrition 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 235000011160 magnesium carbonates Nutrition 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 235000006748 manganese carbonate Nutrition 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000011656 manganese carbonate Substances 0.000 description 2
- 229940093474 manganese carbonate Drugs 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 2
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B47/00—Obtaining manganese
Definitions
- the invention relates to the extraction of metals from ores and has for its object the ob-' cable to various specic processes, but the present case is directed to only one of these in which the desired constituents of the ore are in the form of carbonates and are rendered Water soluble by leaching with a speciic reagent, viz: ammonium sulphate.
- a speciic reagent viz: ammonium sulphate.
- the .following represents the average general approximate analysis of a 10W grade manganese carbonate ore found in South Dakota:
- this step being carried out in agitators A', A2, A3, the solution being preferably kept at substantially boiling temperature, preferably boiling to (NH4) 2G03.
- the solution entering C contains manganese sulphate and magnesium sulphate. Should any ci the iron be converted into a sulphate this may be eliminated by the introduction of raw ore to the solution at C which decompose's the sulphate to iron oxide, the acid radical attacking the manganese, magnesium and calcium carbonates to form sulphates.
- the ore after treatment in C passes to the agitators A', A2, A3 above described, 5 and thus the iron content eventually nds its Way into the residue.
- the next step in the process is that of precipitating the desired metal compound and/or the separation or differential precipitation of the desired metal compounds, which procedure depends entirely upon the elements present, their respective quantities, and their respective solubilities or insolubilities, as they might occur in the ore being treated.
- the following procedure would be preferably as has been outlined on the accompanying ow sheet.
- the sulphate solution freed from most of the iron passes from C to C and thence to F Where v the manganese is precipitated.
- the precipitant used is preferably ammonium hydroxide NH4OH which is derived from a portion of the ammonium carbonate (by the action of calcium oxide) to precipitate the manganese hydroxide Without affecting the other sulphates in solution.
- NH4OH ammonium hydroxide
- the ammonium sulphate solution is returned to J from which it again passes to A', A2, A3.
- the manganese hydroxide Mn(OH) 2 is sintered r to produce manganese manganic oxide MmOi.
- the magnesium carbonate removed by the lter I may be calcined forming magnesium oxide MgO and carbon dioxide, CO2.
- the ow sheet would be simplified in that the soluble manganese 4sulphates containing some, or no other soluble sulphates would be treated with an ammonium compound derived from at least one of the said gases in a single precipitation step.
- the manganese compound is precipitated along with or without such quantities of magnesium compounds and other associated compounds present in the particular ore as soluble constituents.
- the process of recovering manganese compounds from carbonate ores containing manganese and iron compounds comprising treating the ore with a solution of ammonium sulphate at substantially boiling temperature, thereby forming a solution of manganese sulphate resulting in the evolution ef ammonia and carbon dioxide, separating the soluble sulphates from the insoluble gangue containing the iron in .the form of an insoluble compound, and treating said manganese sulphate solution with ammonium hydroxide, thereby precipitating an insoluble manganese compound.
- the process of recovering manganese compounds from carbonate ores which comprises treating the ore with a-solution of ammonium sulphate at substantially boiling temperatures to form soluble manganese sulphate and resultingl in the evolution of ammonia and carbon dioxide gases, separating the soluble manganese sulphate from the insoluble residue and precipitating an insoluble manganese compound from said solution.
- the process offrecovering manganese compoundsv from'carbonate' ores which comprises treating the ore with a solution of ammonium sulphate at substantially boiling temperatures to form soluble manganese sulphate and resulting in thef'evolution of ammonia and carbon dioxide gases, separating the soluble manganesevsulphate from the insoluble residue, precipitating an insoluble manganese compound from the solution withl an ammonium compound derived from at least one ofthe said gases capable of forming an insoluble manganese compound and reforming ammonium sulphate and separating and recovering the same in order to repeat the cycle.
- the process of recovering metal compounds from carbonate ores containing manganese and magnesium carbonates, iron and insoluble compounds which comprises treating the ore with a solution of ammonium sulphate at substantially boiling temperatures to form the soluble sulphates of manganese and magnesium and resulting in the evolution of ammonia and carbon dioxide gases, separatlng the soluble sulphates from the insoluble residue, precipitating insoluble manganese hydroxide from the solution with ammonium hydroxide derived from said gases therebyv reforming ammonium sulphate, separating and treating the remaining soluble sulphates of magnesium and ammonium with ammonium carbonate derived-from said ammonia and carbon dioxide gases to precipitate insoluble magnesium carbonate and to reform ammonium sulphate and separating 4 ⁇ and recovering the ammonium sulphate resulting from the several precipitations in order to repeat the-cycle.
Description
Feb. 9, 1937.
A. T. SWEET ET AL 2,070,497
,PROCESS OF OBTAINING MANGANESE VALUES FROM ORES CONTAINING THEM i Original Filed Sept. 23, 1929 ATTORNEYK Patented Feb. 9, 1937 PATENT OFFICE PROCESS OF OBTAINING MANGANESE VALUES FROM ORES CONTAINING THEM Andrew T. Sweet,
Houghton,
and John D.
MacCarthy, Detroit, Mich., assigncrs to General Manganese Corporation, Detroit, Mich., a corporation of Delaware Application September 23, 1929, Serial No. 394,677
Renewed June 26, 1935 Claims.
The invention relates to the extraction of metals from ores and has for its object the ob-' cable to various specic processes, but the present case is directed to only one of these in which the desired constituents of the ore are in the form of carbonates and are rendered Water soluble by leaching with a speciic reagent, viz: ammonium sulphate. As an example of ore which may be treated, the .following represents the average general approximate analysis of a 10W grade manganese carbonate ore found in South Dakota:
Dried 212 F.
As illustrated by the now sheet in the accompanying drawing, the crushed ore is rst treated with a water solution of ammonium sulphate,
' this step being carried out in agitators A', A2, A3, the solution being preferably kept at substantially boiling temperature, preferably boiling to (NH4) 2G03.
In they next step the solution and residue are passed to B where the liquid is separated from The solid, the solution passing on to C and thel solids to Bf, thence after Washing and filtration at D to waste E, this containing the iron, silica,
calcium sulphate and other Y insoluble constituents.
The solution entering C contains manganese sulphate and magnesium sulphate. Should any ci the iron be converted into a sulphate this may be eliminated by the introduction of raw ore to the solution at C which decompose's the sulphate to iron oxide, the acid radical attacking the manganese, magnesium and calcium carbonates to form sulphates. The ore after treatment in C passes to the agitators A', A2, A3 above described, 5 and thus the iron content eventually nds its Way into the residue.
The next step in the process is that of precipitating the desired metal compound and/or the separation or differential precipitation of the desired metal compounds, which procedure depends entirely upon the elements present, their respective quantities, and their respective solubilities or insolubilities, as they might occur in the ore being treated. For example, in the proces-Sing 15 of the ores cited above the following procedure Would be preferably as has been outlined on the accompanying ow sheet.
The sulphate solution freed from most of the iron passes from C to C and thence to F Where v the manganese is precipitated. The precipitant used is preferably ammonium hydroxide NH4OH which is derived from a portion of the ammonium carbonate (by the action of calcium oxide) to precipitate the manganese hydroxide Without affecting the other sulphates in solution. After filtration at G the solution is passed to H in which it is treated by ammonium carbonate precipitating magnesium carbonate MgCO3. This leaves in the solution only ammonium sulphate which has been reformed as a result of the several precipitations. Thus after filtration at I the ammonium sulphate solution is returned to J from which it again passes to A', A2, A3.
The manganese hydroxide Mn(OH) 2 is sintered r to produce manganese manganic oxide MmOi. The magnesium carbonate removed by the lter I may be calcined forming magnesium oxide MgO and carbon dioxide, CO2.
While the above procedure is preferable in treating the ores specically used for an example of the process, it is within the scope of the invention to treat other manganese ores containing the same or other associated minerals prescnt in the same quantities or present in variable 45 quantities, or as less soluble compounds, or as insoluble compounds. It is obvious at once that minor changes in the manner and methods o precipitation are necessary to precipitate the desired metal compounds or to effect a differential 50 precipitation as desired.
As a further example of this feature, it will be noted by reference to the flow sheet that provision has been made for the alternative use of ammonium hydroxide or ammonium carbonate 5,-.
as desired in the tank F containing the soluble sulphates for the reason that it may be desirable to precipitate the manganese and magnesium or other soluble-compounds in a single precipitation step. In an orecontaining magnesium and lime as insolubles, or as solubles in small quantities, or one containing no magnesium and lime at all, the ow sheet would be simplified in that the soluble manganese 4sulphates containing some, or no other soluble sulphates would be treated with an ammonium compound derived from at least one of the said gases in a single precipitation step. In this case the manganese compound is precipitated along with or without such quantities of magnesium compounds and other associated compounds present in the particular ore as soluble constituents. The'single precipitation thereby reforms the ammonium sulphate. Other deviations made necessary through the use of ammonium chloride as the reagent instead of ammonium sulphate due to the variation in the different solubilities of the metal chloride compounds may be had by reference to our co-pending application, Serial No. 392,983, led September 16, 1929.
It will be noted that in the complete cycle the end products do not contain any portion of the reagent ammonium-sulphate which was used for the rst step of the process. Further, that the precipitants used inthe succeeding steps are derived from the ammonium sulphate and eventually are re-converted thereinto. Thus the process is completely cyclic.
To regenerate ammonium sulphate from the calcium sulphate the gangue is treated with a solutionof the ammonium carbonate to form calcium carbonate and ammonium sulphate.
What we claim as our invention is:
. l. The process of recovering manganese and magnesium compounds from carbonate ores precipitations for repeating the cycle.
2. The process of recovering manganese compounds from carbonate ores containing manganese and iron compounds comprising treating the ore with a solution of ammonium sulphate at substantially boiling temperature, thereby forming a solution of manganese sulphate resulting in the evolution ef ammonia and carbon dioxide, separating the soluble sulphates from the insoluble gangue containing the iron in .the form of an insoluble compound, and treating said manganese sulphate solution with ammonium hydroxide, thereby precipitating an insoluble manganese compound.
3. The process of recovering manganese compounds from carbonate ores which comprises treating the ore with a solution of ammonium sulphate at "substantially boiling temperatures to form soluble manganese sulphate and resulting in the evolution of ammonia and carbon dioidde gases and separating and recovering soluble manganese sulphate from the insoluble residue.
5. The process offrecovering manganese compoundsv from'carbonate' ores which comprises treating the ore with a solution of ammonium sulphate at substantially boiling temperatures to form soluble manganese sulphate and resulting in thef'evolution of ammonia and carbon dioxide gases, separating the soluble manganesevsulphate from the insoluble residue, precipitating an insoluble manganese compound from the solution withl an ammonium compound derived from at least one ofthe said gases capable of forming an insoluble manganese compound and reforming ammonium sulphate and separating and recovering the same in order to repeat the cycle.
6. The process of recovering manganese and magnesium compounds from carbonate ores -which comprises treating the ore with a solution of ammonium sulphate at substantially boiling temperatures to form the soluble sulphates of manganese and magnesium and resulting in the evolution of ammonia and carbon dioxide gases,
separating the solublefsulphates from the insoluble compounds, precipitating insoluble manganese and magnesium compounds from the solutionwith 'an ammonirun compound derived from the ammonium sulphate in order to repeat the cycle.
7. The process of recovering manganese compounds from carbonate ores containing manganese carbonate, iron and insoluble compounds which comprises treating the ore .With a solution of ammonium sulphate at substantially boiling temperatures to form soluble manganese sulphate and resulting in the evolution of ammonia and carbon dioxide gases,'separating the soluble manganese sulphate from the insoluble residue, precipitating a manganese compound from the solution With an ammonium compound derived from at least one of said gases capable of forming an insoluble manganese compound and reforming ammonium-sulphate and separating and recoveringthe-same in order to repeat the cycle.
8. The process of recovering metal compounds from' carbonate ores containing manganese and magnesium cabonates which comprises treating the ore with a solution of ammonium sulphate at substantially boiling temperatures to form the soluble sulphates of manganese and magnesium and resulting in the evolution of ammonia and carbon dioxide gases, separating the soluble sulphates from the insoluble residue, precipitating insoluble manganese hydroxide from the solution at least one of said gases thereby reforming ammonium sulphate and separating and recovering with ammonium hydroxide derived from said gases therebyy reforming ammonium sulphate,
separating and treating. the remaining soluble n 9. The process of recovering metal compounds from carbonate ores containing manganese and magnesium carbonates, iron and insoluble compounds which comprises treating the ore with a solution of ammonium sulphate at substantially boiling temperatures to form the soluble sulphates of manganese and magnesium and resulting in the evolution of ammonia and carbon dioxide gases, separatlng the soluble sulphates from the insoluble residue, precipitating insoluble manganese hydroxide from the solution with ammonium hydroxide derived from said gases therebyv reforming ammonium sulphate, separating and treating the remaining soluble sulphates of magnesium and ammonium with ammonium carbonate derived-from said ammonia and carbon dioxide gases to precipitate insoluble magnesium carbonate and to reform ammonium sulphate and separating 4`and recovering the ammonium sulphate resulting from the several precipitations in order to repeat the-cycle.
10. The process of recovering metal compounds .from carbonate ores containing manganese, magnesium and calcium carbonates, iron and insoluble compounds which comprises treating the ore with a solution offammonium sulphate at substantially boiling temperatures to form the soluble sulphates of manganese and magnesium, resulting in the evolution of ammonia and carbon dioxide gases, separating the soluble sulphates from the insoluble residue, precipitating insoluble manganese hydroxide from thesolution with ammonium hydroxide derived from said gases thereby reforming ammonium sulphate, separating and treating the remaining solution with ammonium carbonate derived from said ammonia and carbon dioxide gases to precipitate insoluble magnesium carbonate thereby reforming ammonium sulphate, separating and treating the insoluble calcium sulphate in the rst residue with ammonium carbonate derived 'from said ammonia and carbon dioxide gases to form calcium carbonate thereby reforming ammonium sulphate and
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US394677A US2070497A (en) | 1929-09-23 | 1929-09-23 | Process of obtaining manganese values from ores containing them |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US394677A US2070497A (en) | 1929-09-23 | 1929-09-23 | Process of obtaining manganese values from ores containing them |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2070497A true US2070497A (en) | 1937-02-09 |
Family
ID=23559956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US394677A Expired - Lifetime US2070497A (en) | 1929-09-23 | 1929-09-23 | Process of obtaining manganese values from ores containing them |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2070497A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2772957A (en) * | 1953-11-09 | 1956-12-04 | American Chrome Company | Method of processing disseminated chromite ores |
| US3338667A (en) * | 1963-12-02 | 1967-08-29 | Johns Manville | Recovery of silica, iron oxide and magnesium carbonate from the treatment of serpentine with ammonium bisulfate |
| EP0160171A2 (en) * | 1984-03-05 | 1985-11-06 | Hoechst Aktiengesellschaft | Process for the preparation of ammonium salt containing manganese (II) salt solutions |
-
1929
- 1929-09-23 US US394677A patent/US2070497A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2772957A (en) * | 1953-11-09 | 1956-12-04 | American Chrome Company | Method of processing disseminated chromite ores |
| US3338667A (en) * | 1963-12-02 | 1967-08-29 | Johns Manville | Recovery of silica, iron oxide and magnesium carbonate from the treatment of serpentine with ammonium bisulfate |
| EP0160171A2 (en) * | 1984-03-05 | 1985-11-06 | Hoechst Aktiengesellschaft | Process for the preparation of ammonium salt containing manganese (II) salt solutions |
| EP0160171A3 (en) * | 1984-03-05 | 1987-07-15 | Hoechst Aktiengesellschaft | Process for the preparation of ammonium salt containing manganese (ii) salt solutions |
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